The equation is $\"\"$ .

The graph of $\"\"$ is a circle radius $\"\"$ and center is $\"\"$ .

Convert the function in rectangular form to function in polar form.

Conversion formula : $\"\"$ and $\"\"$ .

Replace $\"\"$ and $\"\"$ in the function.

$\"\"$

Trignometric identity : $\"\"$ .

$\"\"$

Graph :

Draw polar coordinate plane.

Graph the polar equation $\"\"$ .

$\"\"$

Graph of the polar equation $\"\"$ is

$\"\"$